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#ifndef DESCRIPTORS_H
#define DESCRIPTORS_H

// System Includes.
#include <QString>
#include <QObject>

// User Include.
#include "descriptorexamples_symbian.h"

/*!
 * Class used for initiating different operations on descriptors.
 * These calls are made through private object implementation.
 */
class Descriptors : public QObject, public MResultViewer
{
    Q_OBJECT
public:
        Descriptors ();
        ~Descriptors();

public slots:
        QString showResponse();
        void createOnStack();
        void createOnHeap();
        void createLiterals();
        void callNonModifyingMethods();
        void callModifyingMethods();
        void callCharacterConversions();
        void doLexicalAnalysis();
        void useCircularBuffers();
        void useFlatDynamicBuffers();
        void useSegmentedDynamicBuffers();
        void usePackageBuffers();
        void callRBufDemonstrations();
signals:
        void printMessage();
private:
    /*!
     * From MResultViewer, returns buffer where examples can render
     * results.
     */
    TPtr GetViewBuffer();

    /*!
     * From MResultViewer, updates the editor window with content written
     * by example methods. Internal buffer is cleared so next call to
     * method GetViewBuffer() does return an empty buffer.
     */
    void UpdateView();
private:
    CDescriptorExamples *d_ptr;   // Object used for invoking different descriptor operations.
    HBufC *iBuffer;               // Symbian based buffer used for storing the results of descriptor operation.
    QString message;            // Qt based string holding the descriptor operation results.

};

#endif // DESCRIPTORS_H
